Sade
Popular questions and responses by Sade
Calculus
Given v = 5 theta=30 degrees, write the vector v.
asked on November 2, 2016 
PreCalculus
Use a calculator to approximate two values of theta (0
asked on September 27, 2016 
Trig
Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(AB).
asked on October 6, 2016 
chemistry
a sheet of gold weighing 10.0g and at a temperature of 18.0 degrees c is placed flat on a sheet of iron weighing 20.0g and a tenp. of 55.6 degrees c. what is the final temp. of the combined metals? assume that no heat is lost to the surroundings.
asked on July 10, 2011 
Trig
Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Sin(AB).
asked on October 6, 2016 
Trig
Given tan(A) = 2 and A is in Quadrant I, find tan(2A). A. 1/3 B. 2/3 C. 4/3 D. 2/3
asked on October 7, 2016 
chemistry
When 15.0 g of steam drops in temperature from 275.0 degrees c to 250.0 degrees, how much heat energy is released
asked on July 9, 2011 
Physics
A blacksmith dropped a 1.5kg iron bead at 300c into some quantity of water. If the temperature of the water from 15c to 18c, what is the mass of water assuming no heat is lost to the surrounding?(Take the specific heat of iron as 0.46jkg1 and that of
asked on June 27, 2019 
Physics
The electronic configuration of an element X is: 1s² 2s² 2p6 3s2 3p5 Deduce the atomic number of X To what group does it belong Give two properties of the group to which the element X belong. Identify element X by name. Write a balanced equation to
asked on June 27, 2019 
PreCalculus
Find first differences for the sequence in order from a_1 to a_5. Determine whether or not the series is quadratic or not.(I used _ as a sign for a subscript) 1, 3, 1, 5, 15 A. 2, 2, 6, 10; not quadratic B. 2, 2, 6, 10; quadratic C. 2, 2, 6, 10; not
asked on December 12, 2016 
Math
r=4/(26sinϴ) 1. What is the eccentricity of the function? 2. What is the distance between the pole and the directrix? 1. A. 2 B. 2 C. 3 D. 3 2. A. 2 B. 2/3 C. 3 D. 6
asked on December 4, 2016 
Calculus
I apologize if this question is too much to ask on this site, but I am really confused. Any help would be greatly appreciated. The famous formula shown below is called Euler’s formula, after the Swiss mathematician Leonhard Euler (17071783). e^(a + bi)
asked on November 7, 2016 
Calculus
A plane traveling 500 mph (called airspeed) in the direction 120 degrees encounters a wind of 80 mph in the direction of 45 degrees. What is the resultant direction of the plane (in degrees)?
asked on November 2, 2016 
Trig
Use the halfangle formula to simplify (sin4theta)/(1+cos4theta)
asked on October 17, 2016 
Trig
If angle A is 45 degrees and angle B is 60 degrees. Find sin(A)cos(B), find cos(A)sin(B), find sin(A)sin(B), and find cos(A)cos(B) The choises for the first are: A. 1/2[sin(105)+sin(345)] B. 1/2[sin(105)sin(345)] C. 1/2[sin(345)+cos(105)] D.
asked on October 8, 2016 
PreCalculus
Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Cos(A+B).
asked on October 6, 2016 
PreCalculus
Define the inverse secant function by restricting the domain of the secant function to the intervals (0, pi/2) and (pi/2, pi), and sketch the inverse function’s graph.
asked on August 30, 2016 
ENGLISH
Which word is most similar to morose? sensitive silly unhappy stubborn no sure but i it might be sensitive
asked on March 30, 2015 
psy/315
I need someone to help me answer this question please. What is the fivestep process for hypothesis testing, and explain the procedure and logic for each.
asked on October 1, 2013 
Chemistry
How much energy must be absorbed by 20.0 g of water to increase its temperature from 283.0 degrees c to 303.0 degrees c
asked on July 9, 2011 
Chemistry
A quantity of gas weighing 7.10g at 741 torr and 44 degrees C occupies a volume of 5.40 L. What is its molar mass?
asked on July 8, 2011 
u.s history
why was the united nation formed after war world two It looks as if what you need to do is learn how to conduct thorough and effective searches for yourself. That's what research is, and I'm sure that's what your teacher expects you to do  conduct
asked on May 17, 2007 
Physics
When a 5kg mass is hung from a vertical spring,it streches by 25cm.(a)what mass must be supported by d spring in order to make d system vibrate wit a period of 1s.(b)if d amplitude of d motion is 5cm,determine d position nd d velocity of d mass 0.3s afta
asked on June 26, 2019 
Physics
an electric appliance takes 5A when operated on a 220V supply. Find the cost of operating the appliance for days at 2 kobo per kwh?
asked on June 25, 2019 
Calculus
Which would be the best option for finding the limit? lim (12x3x^2)/1+x x>1 A.Direct substitution B.Dividing out technique C.Rationalization technique D.Indeterminate form
asked on December 12, 2016 
Calculus
Find a quadratic model for the sequence. 4, 4, 3, 1, 2 A.y = 0.5x^2  0.5x  4 B.y = 0.5x^2  1.5x  3 C.y = 4.5x^2  21.5x+21 D.y = 4.5x^2 + 21.4x  21
asked on December 12, 2016 
Calculus
Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. A.1 B.2 C.3 D.5
asked on December 12, 2016 
PreCalculus
Given: r = 4/(26sinθ) What is the distance between the pole and the directrix? A. 2 B.2/3 C.3 D.6
asked on December 3, 2016 
Calculus
Given: r = 4/(26sinθ) What is the eccentricity of the function? A. 2 B. 2 C. 3 D. 3
asked on December 3, 2016 
Calculus
Given: 5cos6Θ What is the shape of the function? A. Limacon B. Rose C. Lemniscate D. Circle
asked on December 3, 2016 
PreCalculus
Convert to Rectangular: r*tan theta/sec theta=2 A. y=2 B. y=1/2 C. x=2 D. x=1/2
asked on December 2, 2016 
Calculus
Convert to Polar: y/x = 4 A. r = 2 B. r = 16 C. Θ = 76 D. Undefined
asked on December 2, 2016 
Calculus
convert to polar: 2xy=3 A. r=sqrt(3sin theta cos theta) B. r=sqrt[(3sin theta cos theta)/2] C. r=[3/(2sin theta cos theta)] D.This cannot be converted without ambiguity.
asked on December 2, 2016 
Calculus
find the angle between u=7i+2j and v=4j
asked on November 9, 2016 
Calculus
What is the absolute value of: 3  8i? A. 9 B. 64 C. √55 D. √73
asked on November 7, 2016 
PreCalculus
What is the absolute value of: 3  8i? A. 9 B. 64 C. √55 D. √73
asked on November 7, 2016 
PreCalculus
Use the following vectors to answer the question. u: v: What is the projection of u onto v?
asked on November 5, 2016 
Calculus
Given the vectors u = and v = , find ½ u. A. B. C. D.
asked on October 28, 2016 
Trig
Write 3theta  sin 4theta as a product.
asked on October 17, 2016 
Trig
Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, what is the Quadrant of AB?
asked on October 6, 2016 
PreCalculus
Find two exact values of theta in degrees (0 less than or equal to theta < 360°) if cos theta = (square root of 2)/2.
asked on September 27, 2016 
PreCalculus
Use a calculator to approximate two values of theta (0
asked on September 27, 2016 
psych
What is the Importance of Research in Behavioral Science?
asked on February 22, 2016 
Psy
What effect does the environment have on intellectual differences in humans?
asked on April 15, 2014 
science
Please help balance this: CH3COO + CrO4 + H = Cr(OH)3 + CO2 + H2O
asked on March 18, 2014 
PSY/340
I need help finding information on this question please. Discuss the importance of lifelong learning and brain stimulation to longevity and quality of life.
asked on November 9, 2013 
psy/340
I need help finding information on the topic Repetitive Transcranial Magnetic Stimulation for the Treatment of Chronic Tinnitus After Traumatic Brain Injury please. I have to discuss the deficits experienced by the individual to one or more of the five
asked on November 9, 2013 
psy/340
I need help answering this question please. Discuss the influences of biology and the environment on sexual differentiation.
asked on November 5, 2013 
psychology
I need help answering this question please. What is the relationship between genes, cells, and behavior?
asked on October 16, 2013 
PSY
I need help answering this question please. What is the relationship between genes, cells, and behavior?
asked on October 16, 2013 
PSY/340
I need help answering this question please. What is the relationship between genes, cells, and behavior?
asked on October 15, 2013 
PSY/315
I need help finding this answer please. Why is it said that hypothesis testing involves double negative logic?
asked on September 27, 2013 
math
the energy bar kyle is eating has 37 grams of carbohydrates.how many calories are from carbohydrates in the energy bar
asked on May 3, 2013 
math
find the functions f and g so that f.g=H: H(x)=sqrt x^2+3
asked on March 23, 2013 
economics
Median income in a country rises by $5000 per year. The price of good X falls by $4. Quantity demanded for good x falls by 15,000 units per year. What can we say with good X?
asked on February 13, 2013 
social studies
origin of man efik believe christian believe islamic believe yoruba believe igbo believe hausa believe tiv believe badagry believe
asked on October 10, 2010 
home economics
what is home economics? home economics is and education for better living,and its stufy deals with all aspects of family life.
asked on September 27, 2010 
delinquency
how dose gender affect delinquency
asked on June 14, 2010 
Justice
Differentiate between general deterrence, specific deterrence, and situational crime prevention.
asked on May 27, 2010 
u.s history
how did the u.s force japan to surrender and bring an end to the war world two The US dropped the atomic bombs on Japan, and they surrendered. Go to http://www.google.com and look up enola gay  it'll be crystal clear!!
asked on May 17, 2007

chemistry
X2CO3.10H2O
posted on February 10, 2020 
L.A
roman is right
posted on March 16, 2019 
Language Arts Check please
help....plz? is correct
posted on December 13, 2018 
Language Arts
Yes, A D B is the correct order.
posted on December 13, 2018 
Math
Thanks Zeriku
posted on December 12, 2018 
Math
101
posted on December 4, 2018 
Trig
choices*
posted on October 8, 2016 
english
Which one of the following statements contains a simile? A. The maple wears a gayer scarf. B. The soaring bird quickly disappeared from our sight. C. The woods went up in flame. D. I think that I shall never see a poem lovely as a tree.
posted on May 28, 2014 
math
thank you :)
posted on March 23, 2013 
geometry
find uw if vw = 5/8 in
posted on August 13, 2012 
Economics
Which of the following statements is true for a capitalist economy?
posted on October 4, 2011